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Home Digital Electronics Interfacing to the Analog World Comments

  • Question
  • The time required to complete a conversion cycle is called conversion time.


  • Options
  • A. True
  • B. False

  • Correct Answer
  • True 


  • Interfacing to the Analog World problems


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    • 1. Flash A/D converters depend on an input clock pulse to perform each conversion.

    • Options
    • A. True
    • B. False
    • Discuss
    • 2. One form of a sigma/delta modulator circuit is designed to convert a continuous analog signal into a modulated bit stream (A/D).

    • Options
    • A. True
    • B. False
    • Discuss
    • 3. Voltage-to-frequency ADC is more complicated than other ADCs.

    • Options
    • A. True
    • B. False
    • Discuss
    • 4. A summing op-amp can be used for DAC.

    • Options
    • A. True
    • B. False
    • Discuss
    • 5. A light bulb and a switch are examples of an analog circuit.

    • Options
    • A. True
    • B. False
    • Discuss
    • 6. An operational amplifier is used as a comparator.

    • Options
    • A. True
    • B. False
    • Discuss
    • 7. In a counter-ramp A/D converter, the end-of-conversion line must be tied back to the clear input of the counter to change the circuit to perform continuous conversions.

    • Options
    • A. True
    • B. False
    • Discuss
    • 8. When analog inputs from several sources are to be converted, a multiplexing technique can be used so that one ADC may be time-shared.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. A D/A converter changes things such as temperature variations into digital quantities.

    • Options
    • A. True
    • B. False
    • Discuss
    • 10. In a binary-weighted D/A converter the sum of all the currents from the binary weighted resistors flows through the operational amplifier.

    • Options
    • A. True
    • B. False
    • Discuss


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